More than 110 blood donors have contacted the Red Cross in the past 24 hours to report their consumption of Patties frozen berries, as hepatitis A outbreak fears mount.

The Australian Red Cross Blood Service has urged anyone who has eaten the Nanna's one kilogram 'mixed frozen berries' product - linked to all confirmed cases - and donated blood on or after November 1 last year to contact them immediately.

"We only need donors who have consumed that product to contact us right now, as we need to focus on identifying the most at-risk donations in our system," said Red Cross spokesman Shaun Inguanzo.

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Patties Foods has also recalled three other frozen berry products, sold nationally in Coles, Woolworths and IGA supermarkets, as well as independent stores.

Recalled: Nanna's frozen raspberries.

The Red Cross has also placed a ban on people who have eaten the recalled berries from donating blood for two months.

Nine people - two in New South Wales, three in Victoria and four in Queensland - have become sick with hepatitis A in the outbreak, after consuming frozen berries.

Mr Inguanzo said the service and health authorities were still determining the actual risk of the virus entering the blood supply.

"Even though the donor might feel OK now, the hepatitis A virus has a window period of between 15 and 50 days and an average incubation period of 28 days, so it's important we ascertain when they ate the berries and the order," he said.